PVS-Studio warning V501 for DDKSamples

BOOLEAN
DsmpFindSupportedDevice(
    _In_ IN PUNICODE_STRING DeviceName,
    _In_ IN PUNICODE_STRING SupportedDevices
    )
{
  WCHAR tempString[32];
  ....
  tempString[(sizeof(tempString) /
              sizeof(tempString)) - 1] = L'\0';
  ....
}

This is what should have been written here: tempString[(sizeof(tempString) / sizeof(tempString[0])) - 1]

This suspicious code was found in DDKSamples project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions 'sizeof (tempString)' to the left and to the right of the '/' operator. utils.c 931

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/